#include "vis.h"
#include "aggregation.h"
-#include <linux/netfilter_bridge.h>
static void send_outstanding_bcast_packet(struct work_struct *work);
/* apply hop penalty for a normal link */
-static uint8_t hop_penalty(const uint8_t tq)
+static uint8_t hop_penalty(const uint8_t tq, struct bat_priv *bat_priv)
{
- return (tq * (TQ_MAX_VALUE - TQ_HOP_PENALTY)) / (TQ_MAX_VALUE);
+ int hop_penalty = atomic_read(&bat_priv->hop_penalty);
+ return (tq * (TQ_MAX_VALUE - hop_penalty)) / (TQ_MAX_VALUE);
}
/* when do we schedule our own packet to be sent */
if (!(batman_if->net_dev->flags & IFF_UP)) {
pr_warning("Interface %s is not up - can't send packet via "
- "that interface!\n", batman_if->dev);
+ "that interface!\n", batman_if->net_dev->name);
goto send_skb_err;
}
/* push to the ethernet header. */
- if (my_skb_push(skb, sizeof(struct ethhdr)) < 0)
+ if (my_skb_head_push(skb, sizeof(struct ethhdr)) < 0)
goto send_skb_err;
skb_reset_mac_header(skb);
/* dev_queue_xmit() returns a negative result on error. However on
* congestion and traffic shaping, it drops and returns NET_XMIT_DROP
- * (which is > 0). This will not be treated as an error.
- * Also, if netfilter/ebtables wants to block outgoing batman
- * packets then giving them a chance to do so here */
+ * (which is > 0). This will not be treated as an error. */
- return NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
- dev_queue_xmit);
+ return dev_queue_xmit(skb);
send_skb_err:
kfree_skb(skb);
return NET_XMIT_DROP;
}
-/* sends a raw packet. */
-void send_raw_packet(unsigned char *pack_buff, int pack_buff_len,
- struct batman_if *batman_if, uint8_t *dst_addr)
-{
- struct sk_buff *skb;
- char *data;
-
- skb = dev_alloc_skb(pack_buff_len + sizeof(struct ethhdr));
- if (!skb)
- return;
- data = skb_put(skb, pack_buff_len + sizeof(struct ethhdr));
- memcpy(data + sizeof(struct ethhdr), pack_buff, pack_buff_len);
- /* pull back to the batman "network header" */
- skb_pull(skb, sizeof(struct ethhdr));
- send_skb_packet(skb, batman_if, dst_addr);
-}
-
/* Send a packet to a given interface */
static void send_packet_to_if(struct forw_packet *forw_packet,
struct batman_if *batman_if)
{
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
+ struct bat_priv *bat_priv = netdev_priv(batman_if->soft_iface);
char *fwd_str;
uint8_t packet_num;
int16_t buff_pos;
struct batman_packet *batman_packet;
+ struct sk_buff *skb;
if (batman_if->if_status != IF_ACTIVE)
return;
packet_num = 0;
buff_pos = 0;
- batman_packet = (struct batman_packet *)
- (forw_packet->packet_buff);
+ batman_packet = (struct batman_packet *)forw_packet->skb->data;
/* adjust all flags and log packets */
while (aggregated_packet(buff_pos,
"Forwarding"));
bat_dbg(DBG_BATMAN, bat_priv,
"%s %spacket (originator %pM, seqno %d, TQ %d, TTL %d,"
- " IDF %s) on interface %s [%s]\n",
+ " IDF %s) on interface %s [%pM]\n",
fwd_str, (packet_num > 0 ? "aggregated " : ""),
batman_packet->orig, ntohl(batman_packet->seqno),
batman_packet->tq, batman_packet->ttl,
(batman_packet->flags & DIRECTLINK ?
"on" : "off"),
- batman_if->dev, batman_if->addr_str);
+ batman_if->net_dev->name, batman_if->net_dev->dev_addr);
buff_pos += sizeof(struct batman_packet) +
(batman_packet->num_hna * ETH_ALEN);
packet_num++;
batman_packet = (struct batman_packet *)
- (forw_packet->packet_buff + buff_pos);
+ (forw_packet->skb->data + buff_pos);
}
- send_raw_packet(forw_packet->packet_buff,
- forw_packet->packet_len,
- batman_if, broadcast_addr);
+ /* create clone because function is called more than once */
+ skb = skb_clone(forw_packet->skb, GFP_ATOMIC);
+ if (skb)
+ send_skb_packet(skb, batman_if, broadcast_addr);
}
/* send a batman packet */
static void send_packet(struct forw_packet *forw_packet)
{
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
struct batman_if *batman_if;
+ struct net_device *soft_iface;
+ struct bat_priv *bat_priv;
struct batman_packet *batman_packet =
- (struct batman_packet *)(forw_packet->packet_buff);
+ (struct batman_packet *)(forw_packet->skb->data);
unsigned char directlink = (batman_packet->flags & DIRECTLINK ? 1 : 0);
if (!forw_packet->if_incoming) {
return;
}
+ soft_iface = forw_packet->if_incoming->soft_iface;
+ bat_priv = netdev_priv(soft_iface);
+
if (forw_packet->if_incoming->if_status != IF_ACTIVE)
return;
/* FIXME: what about aggregated packets ? */
bat_dbg(DBG_BATMAN, bat_priv,
"%s packet (originator %pM, seqno %d, TTL %d) "
- "on interface %s [%s]\n",
+ "on interface %s [%pM]\n",
(forw_packet->own ? "Sending own" : "Forwarding"),
batman_packet->orig, ntohl(batman_packet->seqno),
- batman_packet->ttl, forw_packet->if_incoming->dev,
- forw_packet->if_incoming->addr_str);
+ batman_packet->ttl,
+ forw_packet->if_incoming->net_dev->name,
+ forw_packet->if_incoming->net_dev->dev_addr);
- send_raw_packet(forw_packet->packet_buff,
- forw_packet->packet_len,
- forw_packet->if_incoming,
+ /* skb is only used once and than forw_packet is free'd */
+ send_skb_packet(forw_packet->skb, forw_packet->if_incoming,
broadcast_addr);
+ forw_packet->skb = NULL;
+
return;
}
/* broadcast on every interface */
rcu_read_lock();
- list_for_each_entry_rcu(batman_if, &if_list, list)
+ list_for_each_entry_rcu(batman_if, &if_list, list) {
+ if (batman_if->soft_iface != soft_iface)
+ continue;
+
send_packet_to_if(forw_packet, batman_if);
+ }
rcu_read_unlock();
}
-static void rebuild_batman_packet(struct batman_if *batman_if)
+static void rebuild_batman_packet(struct bat_priv *bat_priv,
+ struct batman_if *batman_if)
{
int new_len;
unsigned char *new_buff;
struct batman_packet *batman_packet;
- new_len = sizeof(struct batman_packet) + (num_hna * ETH_ALEN);
+ new_len = sizeof(struct batman_packet) +
+ (bat_priv->num_local_hna * ETH_ALEN);
new_buff = kmalloc(new_len, GFP_ATOMIC);
/* keep old buffer if kmalloc should fail */
sizeof(struct batman_packet));
batman_packet = (struct batman_packet *)new_buff;
- batman_packet->num_hna = hna_local_fill_buffer(
- new_buff + sizeof(struct batman_packet),
- new_len - sizeof(struct batman_packet));
+ batman_packet->num_hna = hna_local_fill_buffer(bat_priv,
+ new_buff + sizeof(struct batman_packet),
+ new_len - sizeof(struct batman_packet));
kfree(batman_if->packet_buff);
batman_if->packet_buff = new_buff;
void schedule_own_packet(struct batman_if *batman_if)
{
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
+ struct bat_priv *bat_priv = netdev_priv(batman_if->soft_iface);
unsigned long send_time;
struct batman_packet *batman_packet;
int vis_server;
batman_if->if_status = IF_ACTIVE;
/* if local hna has changed and interface is a primary interface */
- if ((atomic_read(&hna_local_changed)) &&
+ if ((atomic_read(&bat_priv->hna_local_changed)) &&
(batman_if == bat_priv->primary_if))
- rebuild_batman_packet(batman_if);
+ rebuild_batman_packet(bat_priv, batman_if);
/**
* NOTE: packet_buff might just have been re-allocated in
uint8_t directlink, int hna_buff_len,
struct batman_if *if_incoming)
{
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
+ struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
unsigned char in_tq, in_ttl, tq_avg = 0;
unsigned long send_time;
}
/* apply hop penalty */
- batman_packet->tq = hop_penalty(batman_packet->tq);
+ batman_packet->tq = hop_penalty(batman_packet->tq, bat_priv);
bat_dbg(DBG_BATMAN, bat_priv,
"Forwarding packet: tq_orig: %i, tq_avg: %i, "
{
if (forw_packet->skb)
kfree_skb(forw_packet->skb);
- kfree(forw_packet->packet_buff);
kfree(forw_packet);
}
-static void _add_bcast_packet_to_list(struct forw_packet *forw_packet,
+static void _add_bcast_packet_to_list(struct bat_priv *bat_priv,
+ struct forw_packet *forw_packet,
unsigned long send_time)
{
unsigned long flags;
INIT_HLIST_NODE(&forw_packet->list);
/* add new packet to packet list */
- spin_lock_irqsave(&forw_bcast_list_lock, flags);
- hlist_add_head(&forw_packet->list, &forw_bcast_list);
- spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bcast_list_lock, flags);
+ hlist_add_head(&forw_packet->list, &bat_priv->forw_bcast_list);
+ spin_unlock_irqrestore(&bat_priv->forw_bcast_list_lock, flags);
/* start timer for this packet */
INIT_DELAYED_WORK(&forw_packet->delayed_work,
*
* The skb is not consumed, so the caller should make sure that the
* skb is freed. */
-int add_bcast_packet_to_list(struct sk_buff *skb)
+int add_bcast_packet_to_list(struct bat_priv *bat_priv, struct sk_buff *skb)
{
struct forw_packet *forw_packet;
struct bcast_packet *bcast_packet;
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
- if (!atomic_dec_not_zero(&bcast_queue_left)) {
+ if (!atomic_dec_not_zero(&bat_priv->bcast_queue_left)) {
bat_dbg(DBG_BATMAN, bat_priv, "bcast packet queue full\n");
goto out;
}
+ if (!bat_priv->primary_if)
+ goto out;
+
forw_packet = kmalloc(sizeof(struct forw_packet), GFP_ATOMIC);
if (!forw_packet)
skb_reset_mac_header(skb);
forw_packet->skb = skb;
- forw_packet->packet_buff = NULL;
+ forw_packet->if_incoming = bat_priv->primary_if;
/* how often did we send the bcast packet ? */
forw_packet->num_packets = 0;
- _add_bcast_packet_to_list(forw_packet, 1);
+ _add_bcast_packet_to_list(bat_priv, forw_packet, 1);
return NETDEV_TX_OK;
packet_free:
kfree(forw_packet);
out_and_inc:
- atomic_inc(&bcast_queue_left);
+ atomic_inc(&bat_priv->bcast_queue_left);
out:
return NETDEV_TX_BUSY;
}
container_of(delayed_work, struct forw_packet, delayed_work);
unsigned long flags;
struct sk_buff *skb1;
+ struct net_device *soft_iface = forw_packet->if_incoming->soft_iface;
+ struct bat_priv *bat_priv = netdev_priv(soft_iface);
- spin_lock_irqsave(&forw_bcast_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bcast_list_lock, flags);
hlist_del(&forw_packet->list);
- spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bcast_list_lock, flags);
- if (atomic_read(&module_state) == MODULE_DEACTIVATING)
+ if (atomic_read(&bat_priv->mesh_state) == MESH_DEACTIVATING)
goto out;
/* rebroadcast packet */
rcu_read_lock();
list_for_each_entry_rcu(batman_if, &if_list, list) {
+ if (batman_if->soft_iface != soft_iface)
+ continue;
+
/* send a copy of the saved skb */
- skb1 = skb_copy(forw_packet->skb, GFP_ATOMIC);
+ skb1 = skb_clone(forw_packet->skb, GFP_ATOMIC);
if (skb1)
- send_skb_packet(skb1,
- batman_if, broadcast_addr);
+ send_skb_packet(skb1, batman_if, broadcast_addr);
}
rcu_read_unlock();
/* if we still have some more bcasts to send */
if (forw_packet->num_packets < 3) {
- _add_bcast_packet_to_list(forw_packet, ((5 * HZ) / 1000));
+ _add_bcast_packet_to_list(bat_priv, forw_packet,
+ ((5 * HZ) / 1000));
return;
}
out:
forw_packet_free(forw_packet);
- atomic_inc(&bcast_queue_left);
+ atomic_inc(&bat_priv->bcast_queue_left);
}
void send_outstanding_bat_packet(struct work_struct *work)
struct forw_packet *forw_packet =
container_of(delayed_work, struct forw_packet, delayed_work);
unsigned long flags;
+ struct bat_priv *bat_priv;
- spin_lock_irqsave(&forw_bat_list_lock, flags);
+ bat_priv = netdev_priv(forw_packet->if_incoming->soft_iface);
+ spin_lock_irqsave(&bat_priv->forw_bat_list_lock, flags);
hlist_del(&forw_packet->list);
- spin_unlock_irqrestore(&forw_bat_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bat_list_lock, flags);
- if (atomic_read(&module_state) == MODULE_DEACTIVATING)
+ if (atomic_read(&bat_priv->mesh_state) == MESH_DEACTIVATING)
goto out;
send_packet(forw_packet);
out:
/* don't count own packet */
if (!forw_packet->own)
- atomic_inc(&batman_queue_left);
+ atomic_inc(&bat_priv->batman_queue_left);
forw_packet_free(forw_packet);
}
-void purge_outstanding_packets(struct batman_if *batman_if)
+void purge_outstanding_packets(struct bat_priv *bat_priv,
+ struct batman_if *batman_if)
{
- /* FIXME: each batman_if will be attached to a softif */
- struct bat_priv *bat_priv = netdev_priv(soft_device);
struct forw_packet *forw_packet;
struct hlist_node *tmp_node, *safe_tmp_node;
unsigned long flags;
if (batman_if)
bat_dbg(DBG_BATMAN, bat_priv,
"purge_outstanding_packets(): %s\n",
- batman_if->dev);
+ batman_if->net_dev->name);
else
bat_dbg(DBG_BATMAN, bat_priv,
"purge_outstanding_packets()\n");
/* free bcast list */
- spin_lock_irqsave(&forw_bcast_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bcast_list_lock, flags);
hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node,
- &forw_bcast_list, list) {
+ &bat_priv->forw_bcast_list, list) {
/**
* if purge_outstanding_packets() was called with an argmument
(forw_packet->if_incoming != batman_if))
continue;
- spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bcast_list_lock, flags);
/**
* send_outstanding_bcast_packet() will lock the list to
* delete the item from the list
*/
cancel_delayed_work_sync(&forw_packet->delayed_work);
- spin_lock_irqsave(&forw_bcast_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bcast_list_lock, flags);
}
- spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bcast_list_lock, flags);
/* free batman packet list */
- spin_lock_irqsave(&forw_bat_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bat_list_lock, flags);
hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node,
- &forw_bat_list, list) {
+ &bat_priv->forw_bat_list, list) {
/**
* if purge_outstanding_packets() was called with an argmument
(forw_packet->if_incoming != batman_if))
continue;
- spin_unlock_irqrestore(&forw_bat_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bat_list_lock, flags);
/**
* send_outstanding_bat_packet() will lock the list to
* delete the item from the list
*/
cancel_delayed_work_sync(&forw_packet->delayed_work);
- spin_lock_irqsave(&forw_bat_list_lock, flags);
+ spin_lock_irqsave(&bat_priv->forw_bat_list_lock, flags);
}
- spin_unlock_irqrestore(&forw_bat_list_lock, flags);
+ spin_unlock_irqrestore(&bat_priv->forw_bat_list_lock, flags);
}
projects / cascardo / linux.git / blobdiff